What's the difference between sending a short message and receiving a short message?

The short message has been sent, which means that the short message has been sent normally from the sender, but the receiver may not have checked it.

The short message has been received, indicating that the receiver has successfully received it.

2. Different states

The message has been sent and the status of the message is unread.

The short message has been received, indicating that the short message is in the receiving party and has been read.

In short, if you want to determine whether the short message was sent successfully, then the short message has been sent. And if you want to determine whether the short message has been consulted, you must take the receipt of the short message as the premise.

Disadvantages of SMS:

1, with small information capacity

Send a short message of no more than 70 words. Short message platform is relatively boring because it can only edit text and lacks corresponding picture materials, and short message advertisements are rampant, so the reading rate is not necessarily too high.

2. It is difficult to collect terminal data.

SMS platform needs corresponding numbers to send, and how to collect these numbers and how to send them to those customers after collection has become a very important issue, so the customer coverage of SMS platform is not necessarily comprehensive.

3. Transmission is limited

Generally, the number of messages sent by SMS platforms is limited to thousands or even tens of thousands, and it is basically impossible to send messages after 8 pm.